cman: fix memory leak
cman: fix memory leak

This is a very small memory leak but it could add up in some
very long-lived processes that send a lot of messages.

Signed-off-by: Christine Caulfield <992cedbe1eac7dbaff482fcb880a50b57e6b8062@redhat.com>

asp24/resource-agents,stevenraspudic/resource-agents,asp24/resource-agents,stevenraspudic/resource-agents,stevenraspudic/resource-agents,asp24/resource-agents